code: def getParser():
      "Creates and returns the argparse parser object."
      parser = argparse.ArgumentParser(description=__description__)
      parser.add_argument("input", help="Source volume.")
      parser.add_argument("output", help="Target volume.")
      parser.add_argument(
          "-w",
          "--width",
          dest="width",
          type=int,
          default=1,
          help="Width of the contour.",
      )
      parser.add_argument(
          "--dimension",
          type=int,
          help="Extract contours only along this dimension.",
      )
      parser.add_argument(
          "-v",
          dest="verbose",
          action="store_true",
          help="Display more information.",
      )
      parser.add_argument(
          "-d",
          dest="debug",
          action="store_true",
          help="Display debug information.",
      )
      parser.add_argument(
          "-f",
          dest="force",
          action="store_true",
          help="Silently override existing output images.",
      )
      return parser
  
file_path: medpy/bin/medpy_extract_contour.py
imports: import argparse
  import logging
  import math
  import numpy
  from scipy.ndimage import binary_erosion, binary_dilation, generate_binary_structure
  from medpy.core import Logger
  from medpy.io import load, save
label_desc: Use image node_id 3 for calling a global function with example usage: getParser() and returns: parser